发明名称 |
Driving device and driving method |
摘要 |
A driving device of the disclosure has an electromechanical transducer that extends and contracts upon application of voltage thereto and a support member that slidably supports a movable body and is displaced with the electromechanical transducer to which the support member is connected. The disclosed device includes a drive circuit that applies the voltage to the electromechanical transducer is such that the voltage which increases or decreases from a first voltage to a last voltage in a stepped manner and in which at least three values sequentially circulate. A period of time for which the first voltage is applied is changeable. By this method, the movable body is moved with respect to the support member by making a difference between an extension velocity and a contraction velocity.
|
申请公布号 |
US7271522(B2) |
申请公布日期 |
2007.09.18 |
申请号 |
US20060353691 |
申请日期 |
2006.02.14 |
申请人 |
KONICA MINOLTA OPTO, INC. |
发明人 |
YUASA TOMOYUKI;OKAMOTO YASUHIRO |
分类号 |
H01L41/09 |
主分类号 |
H01L41/09 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|